G. S. Agarwal, Sumei Huang
We demonstrate the existence of the phenomenon of coherent perfect absorption in a nonlinear dynamically active opto mechanical system. This is in contrast to previous works which considered linear dielectrics. Since we deal with a dynamical system which we treat microscopically we are able to answer previously unanswered question-where the energy resides when coherent perfect absorption occurs. The energy is shared between the cavity field and creation of a coherent phonon and can be extracted by a perturbation of the external fields or by suddenly changing the $Q$ of the cavity.
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http://arxiv.org/abs/1304.7323
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